FranchescaBurrell FranchescaBurrell

19-02-2021
Mathematics

contestada

Can I plz have some help with this...?

Can I plz have some help with this class=

Respuesta :

oliviamaeve oliviamaeve

19-02-2021

Answer:

x=19

Step-by-step explanation:

The sum of the three anagles is 180

(5x+4)+(x-2)+(3x+7)=180

5x+x+3x+4-2+7=180

9x+9=180

9(x+1)=180

x+1=20

x=20-1

x=19

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